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Poster: foundation Date: Jul 15, 2005 5:08am
Forum: petabox Subject: Re: Filesystem

At my company (not the archive) we're implementing a large storage system for image storage (almost entirely a write once, read many for some, and read almost never for the rest)
and we are looking at mogilefs. Mogilefs uses mysql to track file locations, and automatically replicates the number of copies required. So you can say I want at all times there to be 2 copies of this data and three copies of this other data. And when you lose a server, it detects a copy is inaccessible and starts replicating a new copy. It does the transfers over http or nfs. Because we have written the front end, we don't need a posix compliant file system, we can use the client libraries. Something to consider for people implementing large systems, and a way to avoid RAID (it's raid-ish over the network really).